1 files changed, 1 insertions, 1 deletions

diff --git a/src/window.h b/src/window.h
index dfb88b2cf3c..f0a3a15f442 100644
--- a/src/window.h
+++ b/src/window.h
@@ -973,7 +973,7 @@ extern Lisp_Object Qwindowp, Qwindow_live_p;
 extern Lisp_Object Vwindow_list;
 
 extern struct window *decode_live_window (Lisp_Object);
-extern int compare_window_configurations (Lisp_Object, Lisp_Object, int);
+extern bool compare_window_configurations (Lisp_Object, Lisp_Object, bool);
 extern void mark_window_cursors_off (struct window *);
 extern int window_internal_height (struct window *);
 extern int window_body_cols (struct window *w);